| Grenada to Olivares | 4,542.92 mi (7,311.12 km) |
| Grenada to Olivenza | 4,459.43 mi (7,176.76 km) |
| Grenada to Olot | 4,808.65 mi (7,738.78 km) |
| Grenada to Onate | 4,558.82 mi (7,336.71 km) |
| Grenada to Onda | 4,751.42 mi (7,646.67 km) |
| Grenada to Onteniente | 4,770.89 mi (7,678.01 km) |
| Grenada to Orihuela | 4,777.79 mi (7,689.11 km) |
| Grenada to Osuna | 4,600.49 mi (7,403.77 km) |
| Grenada to Ourense | 4,323.82 mi (6,958.52 km) |
| Grenada to Oviedo | 4,391.57 mi (7,067.55 km) |
| Grenada to Paiporta | 4,760.86 mi (7,661.86 km) |
| Grenada to Pajara | 4,394.72 mi (7,072.63 km) |
| Grenada to Palafolls | 4,837.07 mi (7,784.51 km) |
| Grenada to Palafrugell | 4,847.78 mi (7,801.75 km) |
| Grenada to Palamos | 4,848.55 mi (7,802.99 km) |
